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CSV Delimiter Detector
Compare four CSV delimiters and download complete width diagnostics with explicit ambiguity.
Pasted CSV, One UTF-8 CSV/TSV/text file
delimiter-report.json
Browser only
Runs locally in your browser. Your files, pasted content and generated output are not uploaded. Reset clears this tool’s working data.
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How to use this tool
- Enter the admitted input using CSV input. A selected UTF-8 source file takes precedence over paste.
- Read every comma/tab/semicolon/pipe candidate and any ambiguity or resource refusal; a single-column result cannot identify a delimiter.
- Select Detect delimiter and download delimiter-report.json.
Examples
The input name,value followed by Alice,1 admits comma; a single-column snapshot cannot identify a separator.
Limitations
- 5 MiB UTF-8 input; 50,000 data rows, 500 columns and 500,000 cells under the existing CSV admission. Four complete parses at most; 1 MiB report and a 30-second processing limit.
- A resource-limited candidate makes the overall diagnosis indeterminate. No encoding, arbitrary-dialect, header, confidence or user-intent inference.
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